Gas-engine.



B. J. GULIGK.

GAS ENGINE.

APPLIOATION FILED MAY 27, 1901.

Patented May 25, 1909.

3 SHEETS-SHEET 1.

Huh

E. J. GULIGK.

GAS ENGINE.

' APPLICATION FILED mu'zv, 1907.

Patented May 25, 1909.

3 SHEETS-SHEET 2.

E. J. GULIGK.

GAS ENGINE. 7 APPLICATION FILED MAY 27, 1907.

Patented May 25, 1909.

3 SHEETSSHEET 3.

UNITED STATES PATENT orricn:

EDWARD J. GULIO'K, OF MISHAWAKA, INDIANA.

GAS-ENGINE Specification of Letters Patent.

- Application filed ma 27, 1907. Serial No. 375,976; I

Patented May 25, 1909.

- and intake ports for each cylinder situated upon the same side of the engine, the inlet ports being connected by one common inlet chamber which distributes to both cylinders,

while the bypass ports areseparated for distribution. to the respective cylinders. This construction of the inletports and inlet chamber affords'one common mixing chamber for two cylinders by taking the gases in through one common inlet, while in the singleinlet port construction the gases in coming from the carbureter have to be taken through openings in each of the cyl-' inders compelling the same to pass through a greater .number of turns in the piping which causes an increase of the fiuctuatlon' prohibits accurate regulaof the gases and tion thereof. A further advantage is in that the bypass,

as just described, permits access to the screens for ease in cleaning and repairing, and also allows a conical screen to which gives a very large area for the gases to pass through, as well as avoids the breakage of screens, which is commonwith the fiat type. This breakage of theflat screens is caused by the whipping due to the rapid impulse in passing the gases therethrough.

Further advantages of the construction herein shown will appear in the specification andin the drawingsinwwhich,

Figure l is a vertical section through one of the cylinders and the crank-chamber embodying my invention; Fig. 2 is a vertical sectionthrough one of the cylinder-castings embodying ny invention; Fig, 3 is a crosssection on line 3-3 of Fig. 2, assuming the two cylinders to be complete; Fig. 4' is a vertical section. through the two integral cylindercastings embodying"my; invention;

and Fig! 5 is a cross-section on line 5-5 of I Fig. 4, assuming that the two cylinders are completes The general features of the construction of the gas engine are of the commonform,

. pipe 13 for the water consisting of cylinders '6, water jacket 7 crank case .8,piston head 9, piston'rod I5, crank shaft 11, carbureter l2, radiation jacket, spark plug 14, and pet cocks 15;"

-In casting the two cylinders integral a lateral passage 16is left on one side thereof, and substantiallyintermediate the length of the lateral passage is'a port 17 within which is a pipe 18,.connected to the wall thereof in any suitable manner, so that 'gasesfrom the carbureter are admitted directly lnt0 the common inlet chamber 16 through the port 17. A series of apertures or-inlet ports 9 are further provided, which communicate with the crank case 8, whereby the gasesfrom the cz'lrbureter aredrawn through a single opening into the common inlet chambenand from there through the ports 19 into the crank.

case. By constructing the two cylinders:

with the common inlet chamber therebetween and on one side thereof the carbureter may therefore have single communication with't-he inlet chamber for bothcylinders, whereas, heretofore, it was necessary to have two comn'iunlcating passages or pipes leading from the carbureter to the respective cylinders of the engine, Formed integral with the cylindersare the bypasses. 20 and 21 that havean openin at their lower ends into the crank case, ass iown at 22, and bow out around the .c'ommon inlet chamber con" 'necting above the same with the explosion chamber of the engine by means of the iii-- take ports 22. In the preferred form each cylinder is provided with four intake ports that communicate directly with the bypasses.

Within each bypass is a coneshaped screen or there me; be two as shown at 24 the 7 7 apex of which extends downward into the bypass and their peripheries resisting upon a circumferential flange- 25 within the same, there being a capFQG-to-holdsaid cones in '-.tl1eir proper position upon the circumferential flange, and the top of the bypass is provided with athreadedopening 27. Adapted to best-rowed within said threaded opening is 'a plug 28. Inter-posed between the plug 2S and the cap 26 is a spring 29, the object of'which is to keep the cones normally seated but to afford a spring-seat for the same as the impulse of the engine, tends to unseatthe cone,- and a spring. seat therefore reirders them less liable to be broken. The object of providing a conical screen is to prevent whipping thereof under the impulse of the en ine, which also renders them less liable to he broken.

Qn the opposite side of the cylinder 6, from which the intake ports are situated, are. the exhaust ports 30, there being herein shown two exhaust ports-for each cylinder that are inclosed by an annular boss 31 formed integral with the cylinder and to which is adapted to be connected a suitable pipe to conduct the exhaust gases away, as into-a mufiier or the like.

Upon the piston head 9 a deflector 32 is formed integral therewith, for a purpose hereinafter described.

The engine operates as follows r-Assuming gases to have been admitted into the explosion chamber 33 thepiston head 9 would move upward compressing the gases therein,

' which upward movement would form a suction within the crank chamber drawing a new charge or mixture through the pipe 18 from the carbureter 12 into the common mixture chamber 16 and through the ports 19 .into the crank chamber, whereupon the piston having moved to the full extent of its stroke to compress the gases, the charge would be fired and the piston head moved downward entraining the exhaust gases out through the ports 30 whichwould then be opened by the downward movement of the piston head and at the same time opening the intake ports 22 but closing the inlet any two-cycle gasengine wherein the downstroke of the; piston is employed to force a mixture within. the crank chamber into the explosion chamber, it being understood that the features of this invention relate alone to the formation of two integral cylinders hav in a common chamber for the inlet of the mixture from the carbureter and distributing it therefrom into the crank chamber, as. well as the construction of the bypasses which are also formed integral with the engine proper, said bypasses and common inlet chamber all being situated upon the same side of the engine. i

It is not thought necessary to go more into detail in regard to'the general features herein sliown.- It may be stated, however, that 34 is an air intake pipe for the carbureter; 35 an adjustment for controlling the mixture in the carbureter; and that the water jacket, or any of the connections thereto constitute no partof this invention. It is further to be understood that the invention'is not limited to casting two integral cylinders with a common inlet chamher and integral bypasses for each cylinder, but that any number of cylinders may be cast integral having a common inlet chamher and integral bypasses for each cylinder, as herein shown and described, and operating the same, and, therefore, without limiting myself to the construction herein shown,

, I claim -1. A two-cycle gas enginehaving a plurality of integral cylinders, a common gas inlet chamber formed integral with said cylinders, and bypasses formed integral with each cylinder, said gas inlet chamber and bypasses being situated on the same side thereof and in communication with the crank case of said engine, substantially as described. I

2. A two cycle gas engine having a plurality of integral cylinders and a common crankchamber, a common inlet chamber L, F. MAUnnn, J AUSTIN. 

